Biosynthesis and subcellular distribution of hydrolyzable tannins

被引：132

作者：

Grundhöfer, P

Niemetz, R

Schilling, G

Gross, GG ^{[1
]}

机构：

[1] Univ Ulm, D-89069 Ulm, Germany

[2] Heidelberg Univ, Inst Organ Chem, D-69120 Heidelberg, Germany

来源：

PHYTOCHEMISTRY | 2001年 / 57卷 / 06期

关键词：

Quercus robur (Q. pedunculata); Fagaceae; pedunculate oak; Rhus typhina; Anacardiaceae; staghorn sumac; Tellima grandiflora; Saxifracaceae; biosynthesis; immunohistochemistry; transmission electron microscopy; gallotannins; ellagitannins;

D O I：

10.1016/S0031-9422(01)00099-1

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Pathways to complex gallotannins have been elucidated by enzyme studies, indicating that beta -glucogallin is required as principal acyl donor. Evidence for the in vitro oxidation of pentagalloylglucose. the pivotal metabolite in this sequence, to ellagitannins. is presented. Immunohistochemical studies with antibodies raised against pentagalloylglucose and the galloyltransferase catalyzing the formation of this ester revealed that leaf mesophyll cell walls were a typical site of origin and deposition of hydrolyzable tannins, Seasonal changes of these compounds were studied with extracts from cell walls and intracellular space of oak leaves. (C) 2001 Published by Elsevier Science Ltd. All rights reserved.

引用

页码：915 / 927

页数：13

共 54 条

[1] BIOSYNTHESIS OF GALLOTANNINS - BETA-GLUCOGALLIN-DEPENDENT FORMATION OF 1,2,3,4,6-PENTAGALLOYLGLUCOSE BY ENZYMATIC GALLOYLATION OF 1,2,3,6-TETRAGALLOYLGLUCOSE [J].